Habitability
0/ 100
Uninhabitable

THE WORST ICE WORLD EVER

by Metamorphohedron1111
0

Ice World

None Activity
Why is this a Ice World?Your planet orbits at 41.40 AU from its star, resulting in frigid temperatures of 43K.
Ice worlds form beyond the frost line where temperatures are low enough for water and other volatiles to freeze solid. They may have subsurface oceans beneath thick ice shells.
Classification Criteria:
✓ Distance: 41.40 AU (>3 AU) or Temperature <200K✓ Temperature: 43K✓ Water content: 41.4% for ice formation
Habitability ScoreUninhabitable
0
Contributing Factors
water24
Water present but mostly frozen (low gravity lets water escape to space)
geology30
Geologically dead - no nutrient recycling
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry100
All CHNOPS elements present - building blocks of life (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere28
Nitrogen atmosphere provides protection but not breathable (partially stripped by slow rotation)
temperature0
Near absolute zero - all molecular activity ceases, impossible for life
magnetic Field30
No magnetic field - vulnerable to solar radiation

Physical Properties

Mass
0.10x Earth (5.97e+23 kg)
Radius
0.46x Earth (2,957 km)
This planet: 0.46× Earth radiusEarth: 1× (baseline)
Surface Gravity
0.46x Earth (4.6 m/s²)
Surface Temperature
43 K (-230 °C / -381 °F)
Rotation Period
18.0 hours/day (faster than Earth)
This planet: 18 h/dayEarth: 24 h/day

Orbital Environment

Star Type
G-type (Yellow (Sun-like))
Distance from Star
41.40 AU (6.19 billion km)

Atmosphere

Thin nitrogen and methane atmosphere

Elemental Composition

O - Oxygen
32.3%
H - Hydrogen
18.3%
Si - Silicon
16.1%

Surface Characteristics

Frozen surface covered in water ice, possible subsurface ocean if tidal heating present

Closest Real Exoplanet

Kepler-1489 c76% similar
Orbiting Kepler-1489
YoursKepler-1489 c
Mass0.10 × Earth0.09 × Earth
Radius0.46 × Earth0.51 × Earth
Temperature43.5 K—
Starlight received0.00 × Earth—
Star temperature5,600 K5,566 K
Discovered 2024 via transit · 4,175 light-years awaySource: NASA Exoplanet Archive
Moons
Moon 1stable0.010% - 5.5 radii

Small and distant: a quiet, stable companion.

Tidal braking locked the planet to its moon: one face forever moonward.

Moon 2stable0.040% - 13.3 radii

Small and distant: a quiet, stable companion.

+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry